       [v-box
        :gap      "10px"
        :children [[p "[single-dropdown ...] supports tab key navigation."]
-                  [p "The :tab-index parameter specifies position in the tab order,
+                  [p "The " [:code ":tab-index"] " parameter specifies position in the tab order,
                        or it can be removed from the tab order using a value of -1."]
                   [p "Up-arrow and Down-arrow do sensible things."]
                   [p "Home and End keys move to the beginning and end of the list."]

    (fn []
      [v-box
       :gap      "10px"
       :children [[p "Dropdowns choices can be built with arbitrary markup using the :render-fn attribute. When filtering, only the text from the label will be considered."]
                  [h-box
                   :gap      "10px"
                   :align    :center

      [v-box
       :gap      "10px"
       :children [[p "The dropdown below shows how related choices can be displayed in groups. In this case, several country related groups. e.g. 'EN COUNTRIES'."]
                  [p "This feature is triggered if any choice has a " [:code ":group"] " attribute. Typically all choices will have a " [:code ":group"] " or none will. It's up to you to ensure that choices with the same " [:code ":group"] " are adjacent in the vector."]
                  [p "Because :model is initially nil, the " [:code ":placeholder"] " text is initially displayed."]
                  [p [:code ":max-width"] " is set here to make the dropdown taller."]
                  [h-box
                   :gap      "10px"
                   :align    :center
